My pc runs on win 10 32 bit. I have a 1TB external hdd of toshiba. it has some videos whose size is around 90gb. but in properties menu it is showing a total of 240gb is used. i checked that if there is any hidden files, but no, there is no hidden files. i also scanned the hdd with antivirus but nothing was found. i cant find any reason for this. please help. thank you.